Muntin joint



3.11. BUCKINGHAM.

MUNTIN JOINT.

APPLICATION FILED MAYII. 1920.

1,412,163. Patented Apnu, 1922:.

. i lEasmvrfll I A YUhli'FED STATES NoswEL'L n'. :BUoKrNeHAi/Lor Noivrir eLnNlsinn, PENNSYLVANIA.

MUNTIN JOINT.

1,412,163. y i i Application filed May 17,

ing is la specification;

Muntin joints, in metallic window sash or like'structures, are usually madevbycutting i out portionsof the intersecting muntins andv interlocking the cut-outv muntins togetherat the places where the 'metal' has been cut l away. Thisy old method of manufacture is tedious, expensive andfurthermore the cutvting away of the mun'tins often weakens them tosuch extent that they bend or break' at'the joints. t f

One objectof invention is to provide animproved vmuntin joint which will `be of strong and durable construction andl which caribe quickly'an'd cheaply made.

Another object is to sovconstruct my im-k proved joint that the making thereof will not interfere with the proper alignment .and disposition of the parts oftliesa'shframe and for this reason the intended or predetermined dimensions of the sash frame/will not be altered or interfered with by the making of the joints; it beingnoted that in the old method of manufacture as above set forth the cutting away of the intersecting muntins often Ycausesan error in the dimension ofthe sash which results in the improper alignment of the parts of the sash frame and consequently the finished sash' is often'distorted Y from the intended or predetermined size and ance with my invention,

shape.

Fi ure?, is a sectional the line 2 2 of Figure V1, j

Figure?) is a perspective view of one o my improved joining devices, Y

Figure 4 is a perspective view showing the l device of Figure 3 in an inverted position,

and Y Y Figure 5 is a fragmentary perspective View showing a part of one of the muntins y elevation taken von 192e. 'seal No'. :asimila-g'` cut away soY as to abuta transversely extend ing muntin such as shown' in Figures 1 and 2.

vReferring to the'd rawings,'6 represents a continuous muntin, such .for` example as'the muntin of a metallicwindowjsash, having a longitudinally Jextending' 'l1-'head 7, and Vva.

'transverselyextendingfmuntiniis made in two sections`9 and 10 leach'of the sections f f including va T-head 11 similar l to lthe 'T-f headT of the `muntin r6. The ends "of the sections 9 and 10 are cut away asshownjat 12 in Figures-V1 and vso as to providerecesses between theribs'13 and the heads, into which opposite-edge portions of the T-head 7 of the muntin 6 extend when the sections"9 andA 10 vof the muntin 8 are brought intoabutting position'vwith` the muntin` 6 as shown in Figure 1. Thus the adjacentlends of the ribs 13 of the 'sectionsQ'and 10;V abut i' the opposite feces oftherib it ofrtheYmun-vv 'Specification of Letters atent. i 'Patented .Aprg 1i,

` Vin securing the sectio1is`-9 of-th'nelj-r of these clips includes a"substantially`Il li;A

. Similarly,conameteametanie@upsia 1 nach# ,80: i

shapeisaddle 16,4 thesideorleg'portions 317-"- of whichlhav'e integral tongues or ',extensions?? V18 which extend in planes atright angle'sr'toV the planesof the sides 17 as clearly shown in Figures 3 and 4. The space between the sides 17 of the saddles issubstantially equal to the thickness ofthe ribs of themuntins posite surfaces of thevrib Hof the lmuntin 6 as clearly Shown in Figures 1 and'2'. The i saddles 16 are securedA direct Vto the ribs 13 of the respective muntin sections 9'and 10rk and the'tongues 18 vare also secured'to the opposite faces of the ribs 14 of theY muntin 6. The methodjwhich` lfeniployto Asecure, the saddles and tonguesrof the clips tothe.

ribs of the Vrespective muntins is tov actuallytV cause the metal of the saddles-and tongues` ofthe clips to fuse with the metal of the ribs Y of the mu'ntins.A Thisv can be `done,"vvithout` disturbing the alignment or position of the abutting portions of the muntins, byelectrocated by the` dotted circles 22 -in Figures 1 and 2. The construction and arrangement of parts 'as above described securely joins the -muntins together and the joining can bev `welding OrspfOtYWeldingi said Aparts as indiquickly accomplished. The provision of the recesses 12 in the heads of the muntin sections 9 and 10 permits an even intersection of parts of the heads of the sections 9 and 10 in connection with the head 7 oi'the muntin G. Also the ends of the ribs 13 of the muntin sections 9 and l() can abut the opposite faces of the rib 1li of themuntin 6 and in view of the connection of the saddles' and tongues it is practically impossible'to dislodge one of the muntins from its position relatively to the other muntin.

I preferably malte the clips 15 of metal which can be bent without fracturing so th at the tongues 18 can be bent at a desired angle relatively to the saddle 16 in each of the clips so as to provide an integral structureV which will not readily fracture and which Will accommodate itself to the use to which it is put. v

In certain of the claims l have used the term continuous contour by which I mean a contourwvhich is not notched, recessed or split, such for example as a bar either rolled or pressed into shape and remaining in its original condition when used in its association with the other muntin. o

While I have described my invention las taking a particular form, it will be under-v stood that the variousl parts of my invention may be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come Within the scope of the appended claims.

Having thus described my invention, what erally projecting head; a second muntin 'eX-y tending transversely to the length of Vsaid hrst muntin and including a rib with a laterally projecting head and a clip having an-' gularly disposed portions respectively securedl to the side faces of the ribs of said muntlns; substantially as described.

3. A muntin joint comprising two mun-'i tins, one muntin having an end abutting the side of the other muntingvand a clip having of said abutting muntin, said clip including a tongue extending at an angle tosald sad.

dle land secured to the side Vof saidfsecond mentioned muntin; substantially as de# scribed'. Y

In testimonyY name to this specification in the tivo subscribing Witnesses.

Vitnesses 1 j ARTHUR H. HAIGHT,- ZEPH CI-riQUoINn.

whereof I jhave sig-ned "my 'Y presence ofb nostri-ELL n. BUCKINGHAM.- Y

6o a saddle embracing and secured to the sides 

